Feeder for coal breakers



Nov. 3,1925. 1,560,304

I F. PARDEE FEEDER FOR con. saunas Filed 0a. 24. 1922 a Sheets-Sheet 1 IN VENTOR .ZI'iA/YK IDA/205E A 7 RNEY Nov. 3 1925. 1,560,304 F. PARDEE FEEDER FOR coax. saunas Filed Oct. 24. 1922 s Sheets-Sheet 2 I I 66" i NQVENTOR +4 JEAN/r 17/2 55.

A TT RNEY Nov. 3, 1925. 1,560,304

7 F. PARDEE FEEDER FOR COAL BREAKERS Filed Oct. 24. 1922 3 Sheets-Sheet. 5

' INVENTOR I JEAN/r B12055.

IATT RNEY Patented Nov. 3, 1925.

UNITED STATES FRANK PABDEE, OF I-IAZLETON, PENNSYLVANIA.

FEEDER FOR COAL BREAKERS.

Application filed October 24, 1922. Serial No. 596,570.

To all whom it may concern:

Be it known that I, FRANK Pannnn, a citizen of the United States, and resident of Hazleton, Pennsylvania, have invented certain new and useful Improvements in Feeders for Coal Breakers, of which the following is a specification.

This invention relates to improved means for feeding lumps of material such as coal to a breaker and to means for orienting suchlumps and discharging them singly in such position that their longest axes are substantially parallel to the rolls of the breaker.

An embodiment of the invention is illustrated in the accompanying drawings.

Fig. 1 diagrammatically shows a coal breaker with four feed chutes constructed in accordance with my invention adapted to discharge the lumps of coal in proper position to different portions of the breaker;

Fig. 2 is a top plan view showing a smaller coal breaker having a single chute for orienting the lumps and delivering them to the breaker:

Fig. 3 is a section on line 33 of Fig. 2;

Fig. 4 is a section on line 4-4 of Fig. 3;

Fig. 5 is a detail plan view of a modified form of feed chute;

Figs. 6 and 7 are sections on correspond ingly numbered section lines of Fig. 5.

Referring first to Fig. 1, the numerals 1, 1 to 16-16 inclusive, designate opposed cutting discs of the breaker rolls A and B. An inclined chute 20 is adapted to deliver lumps to the discs 1, 2, 3, 4 and the chute 30 is arranged to deliver lumps to the discs 5, 6, 7 and 8. The chute 22 is arranged to discharge lumps to the discs 9, 1O, 11 and 12, and the chute 32 is arranged to discharge lumps onto the discs 13, 1.4L, 15 and 16. The four feed chutes are thus arranged to advantageously distribute the lumps along the entire length of the breaker rolls. Each of the feed chutes is substantially of the same construction, the only difference being that of length, hence the description of one will suifice for all.

The construction and operation of the feed chutes is best illustrated in Figs. 2 to 4: inclusive. In these figures I have shown a coal breaker having breaker rolls A and B, each comprising a series of co-acting discs 1, 2, 3 and i and 1, 2, 8 and 4.

A single chute designated in these figures by numeral 50 is shown for delivering the lumps L to the discs 1, 2, 3 and 4; of the hreakerroll'B. This chute is carried by flexible uprights 52 and 54 which are secured to angle-bars 56 and 5S fastened to the underside of the chute 50 as shown in 4E. Curved straps 60 and 62 are interposed be tween the angles 56, 58 respectively and the bottom of the chute 50 as shown. The; up rights 52 and 54 are adapted to support the chute in an inclined position so that gravity will assist the movement of the lumps of coal or other material fed thereto.

Means are provided for orienting or changing the position of any lumps traveling broadside as they traverse the chute so that such lumps will be properly discharged with their greatest length substantially in the direction of the axes of the breaker rolls, so that said lumps will be presented in the most advantageous position for the cutting action by the opposed discs 1, 2, 3, i and 1, 2, 3, f Means are also provided for shaking or vibrating each chute to assist in cansing the lumps to travel along the same.

The uprights 52 and 54; are secured at their lower ends to a frame 64 which is fastened to aframe 66 of the breaker. On its underside the chute carries a pair of clownwardly extending brackets 68 and 70 which are adapted to co-act with an eccentric or cam 72 mounted on a shaft 74 which shaft is driven by co-acting bevel gears 76 and 78. The gear 7 8 is secured to an inclined shaft 80 mounted in suitable bearings 82 carried by an inclined. bracket 84' fastened to the frames 86 and 64L of the breaker. On its lower end the shaft 80 carries a bevel gear 88 which meshes with a similar gear 90 secured to the outer end of the shaft 92 of the breakerroll B. As thus arranged it is clear that rotation of the shaft 92 will, through gearing and the eccentric above described, cause the chute 50 to vibrate or reciprocate back and forth, the flexible uprights 52 and 54 at such time bending to the right and left as will be understood. The lumps will be fed in a haphazard. manner to the upper. end of each chute and any lumps traveling broadside such as illustrated at L will. strike a projection or barrier 94: formed on or secured to the surface of the chute. As shown in Figs. 1 to 4 this projection c0mprises a rib which is raised or pressed up from the material of which the chute is made, the projection extending downwardly and forwardly in a substantially oblique line. Each chute is of substantially U-shaped formation in cross-section having a curved bottom 96 and upwardly extending sides 98. Some lumps will travel broadside on the upper end of the chute as indicated at L and when they strike the projection or raised rib 94L their ends 1 will contact with the projeetion and the vibrating motion of the chute and gravity will tend to orient said lumps and turn them in the direction of the arrow 00 so that they will travel along the lower portion of the chute with their length extending substantially in the direction of said chute as indicated at L The lower end of the chute is cut away as shown at 100 and the surface of the chute is bent downwardly to form a discharge lip as indicated at 102. The lumps will rollvbroadside in the direc tion of the arrow 2 and fall on the periphery of the adjacent breaker roll. Hence the lumps will be deposited with their longest dimensions extending in the direction of the axis of said breaker roll.

The projection or barrier 9a also serves the important function of spacing the lumps so that at the point of discharge, the following lumps will not interfere with the one sliding off lip 102. It will be appreciated that the projection 94 will act as a barrier to retard the lumps on the upper part of the chute and that such lumps will be released one at a time as the chute is vibrated. The lumps traveling on the lower end of the chute beyond the projection will therefore be spaced apart from one another or will travel in spaced single file, hence the foremost lump will start to fall from the discharge lip of the chute before its neighbor reaches the discharge point, thus it is clear they will not interfere with each other.

Rotation of the rolls A and B or A and B will carry each lump down into the bite of the rolls where it will be acted upon by a plurality of the opposed discs of the breaker and further rotation of the breaker rolls will cause the co-actingdiscs to break or split each lump into a plurality of pieces, the size of the pieces being determined by the spacing between the adjacent discs on the breaker rolls. The discs of the breaker rolls as shown in Fig. 3 are formed with cutting teeth 1041 which may be beveled as indicated at 106 so that the opposed discs will. exert a cutting or splitting action on the lumps as the rolls rotate. The cutting discs on the roll A" are carried on ashaft 108 which has secured at one end a spur gear 110 meshing with a similar gear 112 secured to the shaft 92 of the roll B. The shaft 108 carries a pulley 114 which may be con nected by a belt to any suitable source of power.

' Instead of forming the projection by raising a rib from the surface of the chute as shown in Figs. 1 to 4, I may rivet or otherwise secure a projection to the chute, or as illustrated in Fig. 5 I may strike up a [in 94- in such a way that lumps travelingbroadside along the chute will engage the fin and be oriented so that they will be discharged with their longest axes extending in the direction of the chute.

From the foregoing it is clear that the feed chute is adapted to receive lumps oi. coal or the like at random in various hap hazard positions at its upper end, and to discharge the-in one at a time at its lower end and that as said lumps transverse the chute any lump traveling broadside willstrike the downwardly and forwardly inclined projection which will, orient such lump anc cause it to travel lengthwise along the chute. lVhen the lumps are discharged tren'l the lip 102 of the chute they will fall on the adjacent breaker roll with their longest a extending in the general direction of the aneso'f the breaker rolls. The vibration of the chute will assist in orienting any of the lumps traveling broadside it, being clear that the motion of the chute will cause the rib to strike the end portion of a given lunip and thus turn it,

lVhile I have shown means for vibrating the chutes it is to be understood that it desired I can support them rigidly in 'ably inclined posi -ions so that the lumps r-ri l travel thereon by gravity alone, and I can arrange the rib or projection to etl'ec tively space the lumps and to engage and orient any lumps traveling broadside. It also to be understood that while I have shown and described a type of coal breaker having rolls coi'i'iprising opposed disc. wh ch cut or split the lumps, my improved feeder is not confined to use with such a breaker as it will serve as a valuable adjunct to various types of breakers.

l i hile I have described with great particularity the details of the embodiment oi? the invention herein ilh slrated it is not to be construed that I am restricted to such detailed construction as changes in arrangement and substitution of equivalents may be made by those skilled in the art without departing from theinvention as defined in the appended claims.

hat I claim is:

1.111 combination with the rolls of a rotary breaker, a feeder for conveying lumps thereto comprising a vibrating member extending lengthwise of said breaker rolls, and arranged to deposit the lumps one at a time on the breaker rolls with their longest axes approximately parallel with the axes of rotation of said rolls.

2. In combination with a coal breaker comprising rolls formed of opposed discs adapted to split the lumps along cleavage planes substantially perpendicular to their length, a feeder for conveying lumps to the breaker, comprising a vibrating member ex- Ill) tending lengthwise of the breaker rolls, and having means thereon arranged to orient any lumps traveling broadside and means for gently discharging the lumps, transversely of said vibrating member onto the face of the breaker roll.

In combination with a coal breaker including a roll formed with a plurality of disclike members for cutting lumps in cleavage planes in a direction substantially perpendicular to their greatest length, an inclined member extending lengthwise of the breaker roll adapted to receive the lumps at random in various haphazard positions and to convey them in single file, a fixed projection on said member arranged to orient any lump traveling broadside thereon so that it will be discharged with its greatest length extending in a direction substantially perpendicular to the edges of said disc-like members.

i. A coal breaker including a roll made up of a series of cutter discs for breaking lumps of coal fed thereto, an'inclined chute adapted to receive the lumps at random in various haphazard positions, said chute having a fixed projection arranged to orient any lump traveling broadside thereon so that each lump discharged from said chute straddles the spaces between said discs.

5. A feeder for conveying lumps to an operative point and discharging said lumps in a pre-determined position comprising an inclined non-rotary member arranged to re ceive the lumps at randum in various haphazard positions at its upper end means formed on the member adapted to orient the lumps one at a time so that they are discharged with their greatest lengths extending in the direction of the length of said inclined member.

6. A feeder for conveying lumps of coal or the like, comprising an inclined chute having a projection on its surface adapted to engage the lumps traveling along the chute so that any lump traveling broadside will be oriented and caused to travel lengthwise along the chute.

7. A. feeder for conveying lumps of coal or the like, comprising an inclined chute having a projection on its surface adapted to engage the lumps traveling along the chute so that any lump traveling broadside will be oriented and caused to travel lengthwise along the chute and means for vibrat ing said chute to assist in orienting the lumps and moving them along the chute.

8. A breaker comprising a pair of opposed rolls each of which includes a plurality of spaced discs adapted to cut or split elongated lumps into smaller pieces, an inclined shaking member for depositing the lumps one at a time on the edges of said discs with the greatest length of the lumps extending in the direction of the axes of said discs.

9. A breaker comprising a pair of opposed rolls adapted to out or break lumps fed thereto, a plurality of members adapted to deposit lumps one at a time at different points along he length of the rolls, each member comprising an inclined chute having a projection on its surface arranged to obstruct the flow of lumps so as to permit the discharge of one lump at a time and to engage the lumps so that any lump traveling broadside will be oriented and caused to travel lengthwise along the chute.

10. In combination with the rolls of a breaker a substantially U-shaped chute for feeding the lumps thereto, said chute having an oblique projection adapted to engage the lumps traveling thereon.

11. A feeder for conveying lumps of coal or the like, comprising a chute having a fixed projection for spacing the lumps travcling thereon so that they are discharged one at a time with their greatest lengths extending in the direction of the length of the chute.

12. In. combination with the rolls of a rotary breaker, a feeder for" conveying lumps to said rolls comprising an inclined chute arranged to guide the lumps one at a time to the breaker rolls with their longest axes parallel with the axes of rotation with said breaker rolls.

18. In combination with the rolls of a rotary breaker, a feeder for conveying lumps to said rolls comprising an inclined chute extending in the direction of the axes of the breaker rolls, said chute being of such sectional shape and width that the lumps will be compelled to travel in. single file along the chute, means for orienting any lumps traveling broadside, and a transversely ex tending lip for gently lowering the lumps from the chute to the breaker roll.

14. In combination with a coal breaker roll including a series of adj acently mounted cutter discs, a feed chute extending lengthwise of the breaker roll, said chute being of such width and cross-sectional shape that it will guide the lumps in single file along the chute, a rib formed on the chute for interrupting the flow of the lumps and orienting any lumps traveling broadside,- and a lip formed on the chute for gently guiding the lumps broadside onto discs of the breaker roll so that each lump may be carried successively to breaking position.

In witness whereof, I have hereunto signed my name.

FRANK PARDEE. 

